使用ESP8266将温湿度上传至点灯科技Blinker App的物联网方案

本文主要对物联网常用场景，读取传感器数据然后反馈到app上查看。

硬件：

ESP8266 （我使用的是wemos D1，80Mhz，4M flash)

Arduino IDE(提前将开发板安装）

所需要的库：

1. dht库

GitHub – adafruit/DHT-sensor-library: Arduino library for DHT11, DHT22, etc Temperature & Humidity Sensors

2. 点灯科技Blinker插件

点灯科技-点灯物联网解决方案

使用示例：

blinker-library/DHT_WiFi.ino at master · blinker-iot/blinker-library · GitHub 

#define BLINKER_WIFI

#include <Blinker.h>

char auth[] = "Your Device Secret Key";
char ssid[] = "Your WiFi network SSID or name";
char pswd[] = "Your WiFi network WPA password or WEP key";


BlinkerNumber HUMI("humi"); //对应blinkerapp上的数据名
BlinkerNumber TEMP("temp"); //在blinkerapp下有温度数据名为

// Download Adafruit DHT-sensor-library library here:
// https://github.com/adafruit/DHT-sensor-library
#include <DHT.h>

#define DHTPIN 2

#define DHTTYPE DHT11   // DHT 11
//#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321
//#define DHTTYPE DHT21   // DHT 21 (AM2301)

DHT dht(DHTPIN, DHTTYPE);

uint32_t read_time = 0;

float humi_read, temp_read;

void heartbeat()
{
    HUMI.print(humi_read);        //给blinkerapp湿度数据
    TEMP.print(temp_read);        //给blinkerapp温度数据
}

void setup()
{
    Serial.begin(115200);
    BLINKER_DEBUG.stream(Serial);

    pinMode(LED_BUILTIN, OUTPUT);
    digitalWrite(LED_BUILTIN, LOW);

    Blinker.begin(auth, ssid, pswd);
    Blinker.attachHeartbeat(heartbeat);//将传感器回调函数加载，回传数据
    
    dht.begin();
}

void loop()
{
    Blinker.run();

    if (read_time == 0 || (millis() - read_time) >= 2000)
    {
        read_time = millis();

        float h = dht.readHumidity();//读取DHT11传感器的湿度 并赋值给h
        float t = dht.readTemperature();        

        if (isnan(h) || isnan(t)) {
            BLINKER_LOG("Failed to read from DHT sensor!");
            return;
        }
        else
        {
          BLINKER_LOG("Humidity: ", h, " %");
          BLINKER_LOG("Temperature: ", t, " *C");
          humi_read = h;//将读取到的湿度赋值给全局变量humi_read
          temp_read = t;//将读取到的温度赋值给全局变量temp_read
        }
    }
}

 app端设置

温度数据，湿度设计

 复制device的认证key

修改device认证key，wifi路由器ssid和password

char auth[] = "Your Device Secret Key";
char ssid[] = "Your WiFi network SSID or name";
char pswd[] = "Your WiFi network WPA password or WEP key";

 因为我用的是dht11，所以需要根据自己的方式修改

#define DHTTYPE DHT11 // DHT 11

//#define DHTTYPE DHT22 // DHT 22 (AM2302), AM2321

//#define DHTTYPE DHT21 // DHT 21 (AM2301)

上传看效果

作者：祁华平